[Map] Add missing dependency for spatie/phpunit-snapshot-assertions to require-dev

Author: dannyvw

src/Map/composer.json

@@ -41,7 +41,8 @@
         "symfony/phpunit-bridge": "^7.2",
         "symfony/twig-bundle": "^6.4|^7.0",
         "symfony/ux-twig-component": "^2.18",
-        "symfony/ux-icons": "^2.18"
+        "symfony/ux-icons": "^2.18",
+        "spatie/phpunit-snapshot-assertions": "^4.2.17"
     },
     "conflict": {
         "symfony/ux-twig-component": "<2.21"